APIs are the lifeblood of our industry, and every API must be described in a document. We know API documentation isn’t cool, exciting or revenue generating, but your spec is the foundation on which your entire API-led business is built. Unless you get it right, you’ll always struggle to improve your efficiency.

But with other priorities and precious little best-practice guidance, it’s no wonder that API documents vary in quality, completeness and accuracy – a major cause of inefficiency and delay.

FixSpec is at the forefront of electronic specifications. By taking specs out of the dark ages with SpecServer, we make them more accurate, reusable and useful for you and your customers.

By building a strong foundation, we improve your efficiency, reduce your risk and improve your customer experience. And most importantly, we make integrations happen faster and with fewer problems.

What's The Big Picture?

Better Management

SpecServer brings all of your documents into a single system (irrespective of protocol), making API management simple, easy and effective.

  • Collaborative editing and commenting with full audit trail
  • Firm-wide repositories – all your messages and fields in a single place
  • Simple clone and import capabilities to quickly create new document versions
  • Consistent, easy-to-use UI across all protocols
  • Customer-specific specifications that are easy to create and maintain

Enhanced Understanding

We work hard to bridge the gap between how authors write documents and how developers want to use them.

  • Powerful search – jump directly to what you want to see
  • Customer-specific views
  • Automated updated and imports with ability to link SpecServer instances
  • Unique functional views showing message use within a business context
  • In-line comparisons to understand differences between versions or industry standards

Reusable Specs

Wave goodbye to manually editing machine-readable files. SpecServer is the golden source for all spec requests, and is designed for re-use.

  • White-labelled PDFs can be created directly from SpecServer
  • Exportable to a variety of machine-readable industry and custom formats
  • Open-source FinSpec format, ready for internal or external use
  • Easy integration into QA, development or onboarding processes
  • Consistent, multi-protocol approach

The Details The Matter

Better Management

Simple, in-browser editing with full audit trail. Writing specs has never been so easy or beautiful.

Powerful Search

One global search across all fields, messages and documents. Find it fast.

Repository View

Our unique, top-down management view across all specifications brings consistency to your specs.

In-line Differencing

Simple yet powerful in-line differencing that works across versions, messages and specs.

Online Commenting

Collaborate with colleagues by adding public or private notes to specifications.

Import - Export Formats

Import from machine-readable sources, and export to common formats or branded PDFs.

How Does SpecServer Help My Firm?



Streamline your process and stand out from your competitors.

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Trading Venues

Make the API documentation you already have work harder.

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Software Vendors

Bring onboarding under control and manage API change better.

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Start Up


Onboard faster with market leading tools, while keeping costs under control.

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